It is intended to deliver ambient light rather than directed light for tasks, and contains a nickel-metal-hydride battery, rather than a cheaper nickel-cadmium cell.

ECONOMIST: Solar lighting

Dissatisfied with the soft steel pitons used by other climbers, he taught himself blacksmithing and created a spike of chrome nickel steel so strong and light that it fundamentally changed the sport.

FORBES: The World According to Yvon

Choice slices, cut thin enough to let light pass through, and polished to show the crisscrossed patterning of unalloyed nickel and iron, are as sublimely gaudy as Faberg??, and can be nearly as pricey.

FORBES: Hot Rocks